How to fix a light switch that won’t click?

How to Fix a Light Switch That Won’t Click

Flipping a light switch and feeling a mushy, silent response instead of a sharp snap is an unsettling experience. A switch that won’t click indicates a broken internal mechanical part, which poses a serious and hidden electrical fire risk inside your walls. This blog post explains exactly why this failure occurs and how to safely resolve the hazard.

Why Did My Light Switch Lose Its Click?

Your light switch stopped clicking because the small, internal mechanical spring has completely snapped or worn out.

Every time you flip a switch, this tiny metal spring snaps the electrical contacts together to turn the lights on, or pulls them apart to turn them off. After thousands of uses, this spring eventually fatigues and breaks, leaving the toggle switch feeling loose, mushy, and unresponsive.

Can a Broken Light Switch Cause a Fire?

Yes, a light switch with a broken internal spring is a major fire hazard because the electrical contacts may not fully separate.

When these metal contacts hover too close together inside the switch, the electrical current arcs across the tiny gap, generating intense and dangerous heat. This continuous arcing will melt the plastic switch casing and can easily ignite the surrounding drywall or wood framing.

What Does the Ontario Electrical Safety Code Require?

The Ontario Electrical Safety Code (OESC) strictly prohibits repairing a broken switch and mandates a complete replacement with a certified, approved device.

The code also dictates that the replacement switch must be securely fastened to an approved electrical junction box to contain any potential sparks. Furthermore, the Ontario Building Code (OBC) requires that all electrical boxes maintain their structural integrity, meaning no exposed, damaged wiring components can remain inside your walls.

How Common Are Electrical Switch Fires?

Faulty wiring and broken switches are a leading residential danger, responsible for approximately 20% of all electrical fires in homes.

Data from the Electrical Safety Authority (ESA) of Ontario consistently highlights aging electrical distribution equipment as a top provincial hazard. Replacing a worn-out, silent switch immediately is a simple, highly effective step that keeps your property out of these dangerous safety statistics.

What Are the Expert Insights on Replacing the Switch?

As a designated master electrician, I strongly advise homeowners to completely replace the faulty switch rather than ever attempting to fix the internal plastic components.

Before starting any replacement, you must turn off the main breaker and use a non-contact voltage tester to verify the power is completely dead. For maximum safety, I also recommend wrapping the newly connected screw terminals with electrical tape for an added layer of OESC-compliant protection before pushing the wires back into the box.

Contact Us

If your lighting is acting up, having a designated master electrician inspect your electrical system is the safest course of action.

Are you noticing any of these brighter lights flickering or humming, or is the brightness constant? Call us at 416-838-9006 or visit our contact page — we will be happy to help.